Charge-Transfer Kinetics of Alloying in Mg-Sb and Li-Bi Liquid Metal Electrodes
Name
J. Electrochem. Soc.-2017-Newhouse-A2665-9.pdf
Description
Published version
Size
372.45 KB
Format
Adobe PDF
Checksum (MD5)
230fe24bdeed79e1ae2eec97174f02cd
Author(s)
Newhouse, Jocelyn M
Sadoway, Donald R
Date Issued
2017
Journal
Journal of The Electrochemical Society
Publisher
The Electrochemical Society
Version
Final published version
Abstract
© The Author(s) 2017. Published by ECS. All rights reserved. Liquid metal batteries (LMBs) comprising electrodes of two different liquid metal alloys separated by a molten salt electrolyte have been shown to be high rate-capability energy storage devices. In an effort to specify the limits of the LMB performance envelope, i.e., the electrical output of the cell, the charge transfer kinetics at the positive electrodes in Li-Bi and Mg-Sb have been characterized by electroanalytical methods. The variation in exchange current density, j0, with depth of discharge yielded average values of 60 A/cm2 in Li-Bi and 12 A/cm2 for Mg-Sb. These values confirm the highly facile nature of the liquid-liquid metal-salt interface and indicate that the current in these cells is not limited by electron transfer.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1149/2.1571712JES
